Amphenol ICC 51732-036 Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51732-036 is a 35-position blade power connector header designed for board edge, through-hole, right-angle mounting applications. This connector features male pins and blades with a 0.100" (2.54mm) pitch, configured with 24 signal and 11 power contacts in a 4-row layout. The part is classified as obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Connector Type	Header, Male Pins and Blades
Connector Style	Blade Power
Number of Positions	35
Pitch	0.100" (2.54mm)
Number of Rows	4
Contact Layout	24 Signal, 11 Power
Mounting Type	Board Edge, Through Hole, Right Angle
Termination	Solder
Contact Finish	Gold or Gold, GXT™
Contact Finish Thickness	30.0µin (0.76µm)
Color	Black
Material Flammability Rating	UL94 V-0
Operating Temperature Range	-20°C ~ 105°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Series	PwrBlade®

Substitute Part Grouping Explanation

Substitution of the 51732-036 is determined by strict equivalence across the following critical parameters:

Connector Type & Style: Header with male pins and blades, blade power configuration
Electrical Configuration: 35 positions with 24 signal and 11 power contacts
Mechanical Dimensions: 0.100" (2.54mm) pitch, 4-row layout, board edge right-angle mounting
Termination & Contact Properties: Solder termination, gold contact finish at 30.0µin thickness
Environmental Ratings: UL94 V-0 flammability, -20°C to 105°C operating range, MSL 1

The substitute part 51732-036LF maintains identical electrical and mechanical specifications while differing in product status (active vs. obsolete) and RoHS compliance status.

Parameter Comparison

Parameter	51732-036 (Main Part)	51732-036LF (Substitute)
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Series	PwrBlade®	PwrBlade®
Connector Type	Header, Male Pins and Blades	Header, Male Pins and Blades
Number of Positions	35	35
Pitch	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	4	4
Contact Layout	24 Signal, 11 Power	24 Signal, 11 Power
Mounting Type	Board Edge, Through Hole, Right Angle	Board Edge, Through Hole, Right Angle
Termination	Solder	Solder
Contact Finish	Gold or Gold, GXT™	Gold or Gold, GXT™
Contact Finish Thickness	30.0µin (0.76µm)	30.0µin (0.76µm)
Color	Black	Black
Material Flammability Rating	UL94 V-0	UL94 V-0
Operating Temperature Range	-20°C ~ 105°C	-20°C ~ 105°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	RoHS Compliant
Packaging	Not specified	Tray
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

The 51732-036LF serves as the direct active equivalent to the obsolete 51732-036. Both parts are manufactured by Amphenol ICC within the PwrBlade® series and maintain identical electrical and mechanical specifications across all critical parameters including connector type, position count, pitch, row configuration, contact layout, mounting method, and environmental ratings.

The primary distinction between these parts is product lifecycle status and regulatory compliance. The 51732-036 is obsolete and RoHS non-compliant, while the 51732-036LF is an active product with RoHS compliance. For new designs or ongoing production requiring compliance with current regulatory standards, the 51732-036LF is the appropriate selection. The 51732-036LF is supplied in tray packaging, which differs from the unspecified packaging of the original part.

Both parts carry identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications, confirming their regulatory equivalence for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Are the 51732-036 and 51732-036LF mechanically interchangeable?

A: Yes. Both parts share identical mechanical specifications including pitch (0.100"), row count (4), position count (35), mounting type (board edge, through-hole, right-angle), and physical dimensions. They are direct mechanical substitutes.

Q: What is the difference between these two part numbers?

A: The 51732-036LF is the active production equivalent of the obsolete 51732-036. The substitute part is RoHS compliant, while the original is not. Both maintain identical electrical and mechanical performance specifications.

Q: Can I use the 51732-036LF as a replacement in existing designs originally specified for the 51732-036?

A: Yes. The 51732-036LF is electrically and mechanically equivalent. It maintains the same contact layout (24 signal, 11 power), termination method (solder), contact finish (gold, 30.0µin), and environmental ratings (-20°C to 105°C, UL94 V-0).

Q: What is the significance of the "LF" suffix in the part number?

A: The "LF" suffix indicates lead-free and RoHS compliance. This denotes the part meets current environmental and regulatory standards for hazardous substance restrictions.

Q: Are there any packaging differences between these parts?

A: The 51732-036LF is supplied in tray packaging. The original 51732-036 packaging specification is not provided in the technical data.

Q: Do both parts have the same contact finish specifications?

A: Yes. Both parts feature gold or gold GXT™ contact finish with a thickness of 30.0µin (0.76µm), ensuring equivalent electrical performance and reliability.

Q: What is the moisture sensitivity level for these connectors?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

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